Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/20988
Title: Biofilm Formation and Control In A Model Drinking Water Distribution System With Phosphorus Addition
Authors: FANG WEI
Keywords: biofilm, drinking water, phosphorus, disinfection, metabolic activity, community structure
Issue Date: 16-Jul-2010
Source: FANG WEI (2010-07-16). Biofilm Formation and Control In A Model Drinking Water Distribution System With Phosphorus Addition. ScholarBank@NUS Repository.
Abstract: Biofilm formation on the internal surface of pipeline becomes a great concern as the majority of the microbial growth in drinking water distribution systems (DWDS) is associated with biofilm development. Phosphorus is recognized as another important limiting nutrient besides organic carbon in DWDS. The purpose of this study is to provide an in-depth understanding of the biofilm formation and control in DWDS when phosphorus addition is implemented. The primary conclusion from this research is that phosphorus addition to phosphorus-limiting drinking water will not only increase biofilm cell number, but also decrease the biofilm EPS quantity and change biofilm matrix structure. With phosphorus addition, disinfection efficacies were found to be increased especially for monochloramine. Biofilm metabolic activity was found to increase dramatically and biofilm community structure was found to change with phosphorus addition. As phosphorus addition has the potential to increase the microbial activity and pathogenic bacteria growth, cares must be taken when phosphate-based corrosion inhibitors are applied in DWDS to avoid the potential health-related problems.
URI: http://scholarbank.nus.edu.sg/handle/10635/20988
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
FangW.pdf1.96 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

251
checked on Dec 11, 2017

Download(s)

389
checked on Dec 11, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.